FCPrepareFAAmp
FCPrepareFAAmp[exp]
is an auxiliary function for a partial conversion of a FeynArts amplitude to FeynCalc.
See also
Overview
Examples
FCClearScalarProducts[]
FeynArts`FAFeynAmpDenominator[FeynArts`FAPropagatorDenominator[Momentum[P, D], MW Sqrt[FeynArts`FAGaugeXi[W]]], FeynArts`FAPropagatorDenominator[Momentum[k, D], m]]
FCPrepareFAAmp[%]
FeynArtsˋFAFeynAmpDenominator(FeynArtsˋFAPropagatorDenominator(P,MWFeynArtsˋFAGaugeXi(W)),FeynArtsˋFAPropagatorDenominator(k,m))
(P2−MW2ξW).(k2−m2)1
FeynArts`IndexDelta[FeynArts`Index[Global`Gluon, 1], FeynArts`Index[Global`Gluon, 2]]
FCPrepareFAAmp[%]
FeynArtsˋIndexDelta(FeynArtsˋIndex(Gluon,1),FeynArtsˋIndex(Gluon,2))
δGlu1Glu2